Method and apparatus for testing chew-out strength of paperboard

Details Method and apparatus for testing chew-out strength of paperboard Method and apparatus for testing chew-out strength of paperboard

1993-07-26

1995-01-10

Chilcot, Jr., Richard E.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73841, 493 37, G01N 300

Patent

active

053796489

ABSTRACT:
The invention provides a method and apparatus for testing the chew-out strength of paperboard cores. The apparatus of the invention includes a clamping element for clamping a tubular core to prevent rotation thereof; a splined chuck element in the form of an axially tapered member having a plurality of circumferentially distributed splines for insertion into one end face of the core; and a means for applying increasing torque at a controlled rate to the splined chuck element. A measuring means measures the torque applied to the splined chuck element. In operation, increasing amounts of torque are applied by the torquing means until the splined chuck element shears the end face of the tube resulting in chew-out of the core. The maximum torque force applied to the splined chuck element provides an accurate indication of the chew-out strength of the core.

REFERENCES:
patent: 926513 (1909-06-01), Souther
patent: 1962604 (1934-06-01), Luerssen et al.
patent: 2779187 (1957-01-01), Stewart
patent: 3112643 (1963-12-01), Lanahan
patent: 3662591 (1972-05-01), Bons
patent: 3797304 (1974-03-01), Klinger
patent: 3839905 (1974-10-01), McCallen
patent: 4089211 (1978-05-01), Vercellone et al.
patent: 4159650 (1979-07-01), Maguire
patent: 4235093 (1980-11-01), Spall
patent: 4601198 (1986-07-01), Kolitsch
patent: 4794801 (1989-01-01), Andrews et al.
patent: 4819488 (1989-04-01), Morel
patent: 4958522 (1990-09-01), McKinlay

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